2 -Alkylsulphonyl-7,8-dihydro-5-hydroxy-7-oxo-pyrido[2,3-d]pyrimidine-6-car boxylic acid derivatives
US4236004A · kind A · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1979 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Oct 29, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D498/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
2-Alkylsulfonyl-7,8-dihydro-5-hydroxy-7-oxo-pyrido[2,3-d]pyrimidine-6-carbo xylic acid derivatives are intermediates useful in the production of 7,8-dihydro-2-amino or alkoxy-7-oxo-pyrido[2,3-d]pyrimidine-6-carboxylic acid derivatives which are gastric anti-secretory agents for treatment of peptic ulcer disease and generally anti-allergic agents useful in the treatment of atopic immediate hypersensitivity reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.